Ton millochau



' UNITED STATES PATENT OEEICE.

CHARLES MARIE GASTON MILLoc'I-IAU AND ANATOLE yLEON nERNAUu'oE NANTERRE, FRANCE.

Lu'BRloATo R.

SPECIFICATION forming part of Letters Patent No. 580,528, dated April 13, 1897. Application filed June 27, 1896. Serial No. 597,232. (No model.) Patented in France December 18, 1895,'No. 252,590.`

To all whom it may concern:

Be it known that we, CHARLES MARIE GAS- TON MILLOCHAU and ANATOLE LoN BER- NAUD, of the city oi' Nanterre, near Paris, France, have invented Improvements in Lubricating Apparatus, (for which We have obtained Letters Patent in France for fifteen years, dated December 18, 1895, No. 252,590,) of which the-following is a full, clear, and exact description.-

This invention relates to apparatus for automatically and continuously lubricating engincs and machinery, shafting, dac'. The apparatus is adapted to work at any distance, is-of simple construction, contains no part liable to get out of gear, break, or wear, and needs no supervision. It can be placed in any position and may work while the machine to be vlubricated is notin motion. The same size of apparatus may be used for lubricating engines of any kind or power, and it' may work continuously for a period only limited by the capacity of the oil vor grease reservoir from which it is supplied, While the rate of iow of the lubricating material through the ducts is capable of great variation. The

regularity with which the minimum oflubri-` eating material is uninterruptedly supplied to the parts enables a considerable economy to be realized as compared with the means ordinarily employed, and avoids accidents by dispensing with the services of attendants.

The invention may be carried into effect in various ways to suit the nature of the case, andan example of the apparatus is represented in the accompanying drawings, in which- Figure 1 is an elevation, part-ly in vertical longitudinal section, of a lubricating apparatus embodying our invention, and Fig. 2 is a plan view thereof, partly in transverse horizontal section.

The apparatus comprises two distinct parts, viz: first, the oil or grease pump a, with its suction-valve box b and delivery-valve boxes c,and second, the fluid-pressure motive apparatus or motor-cylinder d with its 'distribution valve-gear. Both of these parts may be mounted upon the same frame.

The oil or grease pump cylinder o, may have either a double-acting piston or a plunger e, as shown. The valves are contained in ordia rack nary valve-boxes and are each provided with a stem or with guide-Wingsand may be either cylindre-conical or ogival-headed at one or at both ends, as shown at f, Fig. 1, for the purpose of facilitating the passage of the oil or grease. The workingcylinder CZ has adouble-acting piston h, Fig. 2, whose rod may extend in both directions through stuiingboxes QI, the end k of the piston-rod being connected to the pump-piston e by a screw connection, for. example, as represented in Fig. 1. The piston hmay be operated either by means of a liquid under pressure,by compressed gas, or by steam pressure. On.the backward stroke of the pump-piston e the oil or grease is drawn into the pump-cylinder through the inlet-valve b, and on the forward stroke it is delivered through the valves c and pipes g to the points fito be lubricated. The forward stroke should be exceedingly slow, so as to obtain the greatest possible economy of lubricating material, and will vary according to the size, nature, andnumber ofv the parts to be lubricated. It will be in all cases very slow as compared with that of the pistou of a steam-engine. However slow its motion may be, it is necessary that the action of the actuating fluid be reversed precisely at the moment when the pistonl arrives at the end of its stroke. This necessitates the use of specialdistribution-gear,such as represented in the drawings, in which the actuating fluid is admitted by pipe 1 and is distributed to the front or rear end of the cylinder by a-four-way cock or distributingvalve m. When-the fluid is admitted to the front end of the cylinder, the other end is in communication with the exhaust-pipe n, and by turning the cock ninety degrees the reverse eect takes place, the operating fluid passing to the rear end of the cylinder and its front end being placed in communication with the exhaust. ing it ninety degrees at each end'of the stroke the plug of the cock, as shown in Fig. 1, and is coupled by a connecting-,rod or geared by as represented in Fig. 1,` with a sleeve p, which isfree to slide in guides 1' fr and is prevented from turningby a feather s,

sliding in a guide t, the guides r r being slotted of the working piston a small crank or a toothed segment o, for example, is iXedto For the purpose of rotat-- IOO thereto, back with it and causes collar at:4 to

` sition may be eected byturning a knob 7,

lninety degrees.

be compressed being greater than the'com mon stroke of the pistons. During the 'return stroke of the pump-piston the'arm, fixed to piston-rod k, carries the rod'v, attached compress the adjacent spring against the 'partition u, theeffect of which would be to slide the sheath p longitudinally were it not held stationary bya vbolt or catch2, Fig. 2, pressed by aspring'i into engagement with a notch in the sheath. The spring continues Vto be compressed throughout the entire stroke of the pistons, however slow it-may be, until on arriving at th-e end of the backward-stroke the apex of the inclined faces of a cam 3, carried by collar as, and which moves in a slot in the sheath p, forces back the bolt or catch 2, and so'releases the sheath, which is thereupon caused to slide quickly backward and rotate the distributing cock or valve m through On the forward stroke the same movements take place in inverse direction, and at the end of the stroke the sheath is forced forward by the other spiral spring and the bolt or catch 2 again falls into engagement with the sheath.

5 and 6 are collars fixed on the sheath and acting as stops to limit the movement of the latter by abutting against the bearings r r.

f -The adjustment of the distribution valvegear and the settingof. the collars a: yin poscrewed on the end of vrod fv.

In lubricating the moving parts of a machine the pressure at the delivery of the pump-cylinder should be. relatively weak, as before mentioned, however great may be the pressure of the fluid employed for actuating the lubricator, and this is insured by means of a 'throttle-valve e, having a truncated conical plug Whose mean diameter is greater than that of the cylindricalbore 8 of the cock-casing and which is hollowed symmetrically at opposite sides, as shown in Fig. 1, so that by suitably adjust-ing it only the smallest quantity vof oil or grease may be allowed to pass, thus producing in the flow-pipesA the exact on a gage fixed at 9. -The part 10, Fig. 2,' of thle plug has a mark parallel to its 'axis which W i opp site to divisions marked uponthe face 11, thus enabling the plug to be returned to the exact position previously occupied. The

be 'used-for actuating the lubricator, the relative diameters of the working pump-pistons being such that"t-here will always be an excess of pressure per unit of surface upon the pump-piston which. is more than suicient and which is reducedfto the minimum by means -of the thrott e-/regulator '2.

The invention chinery generally including hydraulic engines, compresse -air engines, electrical machines, cyli er of/steam-hammers, rollingmills, doc., nd/nqbre particularly. for large marine and st 4tionary engines, all the movable partsofl which may be lubricated by means of flexible piping, as well as to locomotives.

We claim-` The herein-described automatic continuously-acting lubricating apparatus comprising the followinginstrumentalities in operative relation, to wit: a grease or oil pump having an inlet-valve and a Valved outlet leading to an engineto belubricated, a fluidpressure motive apparatus for driving the said pump, a rotary distributing-valve for theplug isiturned comes successively ay be employed for madistributing fluid to the said motive apparatus, a toothed arc for rotating the valve, a rack on a moving part ofthe duid-pressure motive apparatus, a yieldingcoupling "intervening between therack and its moving `operating part, a catch for receiving the thrust of the said coupling untila predetermined time, whereby the energy of the movement of the said moving part willbestored in the said yielding coupling, and a releasing devicefor IOO the catch whereby the yielding coupling will throw'the valve suddenly, substantially. as described and for the pur yoses set forth;

-exert its force ata predetermined time. to

The foregoingspeciiication of Iour improve-1` i Y ments in lubricating apparatus si this 8th day of June, 1896.

gned' by u's CHARLES MARIE GASTON MILLOCHU. y i

ANATOLE LEON rERNAUD. Witnesses: s A

CLYDE SHRoPsHIRE, MAURICE HENRI PIGNET.

.pressure required, which maybe indicated 6o 

